Device for inserting map tacks



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W. P. MILLS DEVICE FOR INSERTING MAP TACKS I Filed Jan. 5. 1922INVENTOR.

ATTORNEY.

Patented July 10, 1923..

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Application. filefiiJ'anuary 3,- 1922. SeriaYNo. 526,829.

To all whom it may concern:

Be it known that .I, "VILLIAM PERCY Mints, a citizen of theUnitedStates, and a resident of Philadelphia, in the county of Philadelphiaand State of Pennsylvania, have invented an Improvement in Devices forInserting Map Tacks, of which the following is a specification.

The insertion or placing of map tacks, push pins and the like in maps,data indicating diagrams, and other objects to indicate graphicallythereon certain information has come to be a very general practice.These tacks and pins are usually inserted by hand; that is, by graspingthe heads thereof between the thumb and finger and inserting them bypressure. This is not entirely satisfactory for two reasons :first, ifthere are many pins to insert the fingers become sore, and secondly, itis difficult to place them as close together upon the map or otherobject as may be desirable or necessary.

It is the object of my invention to provide a device for clamping andholding the heads of these tacks and pins for the purpose of insertingthe points thereof into the map or other object. I

A further object of the invention is to pro vide a device of thischaracter which shall be small and light and which may be cheaplymanufactured.

Other objects and advantages of the invention will be pointed out in thedetailed description thereof which follows or will be apparent from suchdescription.

In order that the invention may be readily understood reference may behad to the accompanying drawing forming a part of this specification andin which Fig. 1 is a perspective view of a device embodying theinvention;

Fig. 2 is a view partly in edge elevation and partly in section thereof;

Fig. 3 is a transverse sectional view taken on the line 3-3 of Fig. 2;and

F ig. 4 is a view showing a portion of the device in side elevation witha pin projecting at right angles thereto instead of lengthwise thereofas shown in Fig. 2.

Referring to the drawing: 1 designates the opposite sides of the deviceconsisting of a single strip of spring metal which sides are in generalparallel relation with respect to each'other and are connectedby theinterined'ia'teljeri't portion 2 at the upper or handle endo'f thedevice. The opposite sides 1 are each provided with semi-circular headportions 4 the hollow sides of the said portions facing each other, asis clearly shown. These head portions 4 are complementary with respectto each other and when pressed into contact form a substantiallyspherical figure. At their extreme lower edges or sides thesemi-spherical head portions 4 are notched, as indicated at 5. The saidsemispherical portions are also provided with notches or projections atthe opposite sides, as indicated at 6.

In the use of the device the spherical shaped head portions 4 areclamped about the head 7 of a pin or tack the point portion of which isindicated at 8. In Fig. 2 the pointed pin portion projects through theopening formed by the complementary notches 5, whereas in Fig. 4 the pinportion 8 projects through the opening formed by two of thecomplementary notches or depressions 6.

Although in the construction shown the clamping portions 4 are ofsemi-spherical outline it will be understood that the shape of theseclamping portions may be changed so as to correspond with the shape ofthe heads of the pins which it is desired to handle. In other words, ifthe heads of the pins or tacks are of oval shape or if they should be ofany other shape the clamping portions 4 should be changed to correspondtherewith. The principle of operation is the same in any case.

It will be seen that I have provided a de vice by means of which-pins 0rtacks may be readily clamped and held for insertion into a map or otherobject, and furthermore that the said device is adapted for readilyplacing the pins in closer relation with respect to each other than maybe readily done when the pins are held in and by the hands of the personinserting the same. It will also be noted that the device provides forholding the pins either in longitudinal relation with respect, to thelength thereof or in substantially right angular relation with respectto its length. This arrangement is provided because it may be found thatin certain cases it is desirable to hold the pin Having thus describedmy invention, What" I'claim and desire to secure by Letters Patent is:

A device for inserting'headed map tacks, which consists of a strip ofsuitable spring metal of prong shape the opposite sides of whichterminate in hollow semi-spherical outwardly projecting portions adaptedto receive the heads of the map tacks, the inner edges ofsaid semispherical portions being provided on their lower edges withcomplementary "notches adapted toreceive the shanks of the map tacks andthe inner edges of said semi-spherical portions being also provided attheir opposite side edges with complementary notches adapted ;.to areceive 7 the shanks of the map tacks.

' In testimony that I claim the foregoing as my invention, I havehereunto subscribed my name this 30th day of December, A. D 1921. p

WILLIAM. PERCY MILLS:

